Grafitti Galore...Austin Style!

...& nicely captured. However, in the way that you have composed & captured the artwork, placing & claiming copyright in your photographs is likely to be inappropriate & legally incorrect (possibly making you liable). Despite the work being "Public Art", it was created by someone else. Some your pics actually show it to be signed. It may even have been paid commissioned work. It's wise to be careful photographing artwork & publishing it with your copyright on the photos. Just my couple of cents